Thanks for all the replies, I read all the previous comments/ threads.
Local dealerships still didn't agree so...
Today I called the dealership I bought the car from (not close by) and they confirmed read directly Skoda's main scheduling intranet "5 years or 140,000 miles which ever comes first", so it seems the local dealership were trying to get me in a year too early!!! The service manager also said they are still having problems with potential leaks from the water pumps at around this age so they inspect them when they strip down and advise the customers depending on condition. When the time comes I'm still tempted to change it to mitigate the cost of labour if it goes in the couple of years following.